time average streamline in CFD post

eng_norouzi · January 14, 2016, 00:40

Hi,
Is it possible to draw the streamlines based on the time average velocity field?
(I have activated the transient statistics in output control in CFX and I can view the time average velocity contours in CFD post but streamlines only exist for standard velocity field).
thanks for your attention,

ghorrocks · January 14, 2016, 02:50

The streamline object allows you to select which vector field variable it operates on. Change this to the time averaged velocity.

eng_norouzi · January 14, 2016, 03:03

Thank you very much Glenn, I found it.

MvdB · October 1, 2016, 10:48

Quote:

Originally Posted by ghorrocks

The streamline object allows you to select which vector field variable it operates on. Change this to the time averaged velocity.

Hi all, I am new to the forum. I used Fluent to analyse the flow over a rotating cylinder. I used data sampling for time statistics and created cfd-post compatible output files. I now want to create streamlines of the time averaged velocity field. The Velocity.Trnavg variable is available in CFD-post, but it is not possible to select it as a variable for the streamlines. The vector field for streamlines are only: relative velocity, velocity, velocity in stn frame and wall shear. Any idea on how to compute the streamlines of the time-averaged velocity field?

phamminhngoc · October 23, 2019, 02:42

Hello guys, I'm using dynamic mesh to simulate the sailboat in calm sea. But I can not make streamline pattern, someone can help me.[IMG]C:\Users\pmn5d\Desktop[/IMG]

Gert-Jan · October 23, 2019, 04:03

Your question has nothing to do with Time average streamlines. So, why do you pick up an old query? Why don't you make a new one?

Then........ what kind of streamlines do you expect? Are you convinced this is wrong? If so, why?

ardourmaker · July 21, 2022, 03:16

Quote:

Originally Posted by MvdB

Hi all, I am new to the forum. I used Fluent to analyse the flow over a rotating cylinder. I used data sampling for time statistics and created cfd-post compatible output files. I now want to create streamlines of the time averaged velocity field. The Velocity.Trnavg variable is available in CFD-post, but it is not possible to select it as a variable for the streamlines. The vector field for streamlines are only: relative velocity, velocity, velocity in stn frame and wall shear. Any idea on how to compute the streamlines of the time-averaged velocity field?

Hello, MvdB.
Did you find the way to do this?
If yes, may I ask how to do it?
thank a lots!

January 14, 2016, 00:40	time average streamline in CFD post	#1
eng_norouzi Member ali Join Date: Feb 2011 Posts: 37 Rep Power: 15	Hi, Is it possible to draw the streamlines based on the time average velocity field? (I have activated the transient statistics in output control in CFX and I can view the time average velocity contours in CFD post but streamlines only exist for standard velocity field). thanks for your attention,

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
AMI speed performance	danny123	OpenFOAM	21	October 24, 2020 05:13
Extrusion with OpenFoam problem No. Iterations 0	Lord Kelvin	OpenFOAM Running, Solving & CFD	8	March 28, 2016 12:08
Micro Scale Pore, icoFoam	gooya_kabir	OpenFOAM Running, Solving & CFD	2	November 2, 2013 14:58
How to write k and epsilon before the abnormal end	xiuying	OpenFOAM Running, Solving & CFD	8	August 27, 2013 16:33
Could anybody help me see this error and give help	liugx212	OpenFOAM Running, Solving & CFD	3	January 4, 2006 19:07

January 14, 2016, 02:50		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	The streamline object allows you to select which vector field variable it operates on. Change this to the time averaged velocity.

January 14, 2016, 03:03		#3
eng_norouzi Member ali Join Date: Feb 2011 Posts: 37 Rep Power: 15	Thank you very much Glenn, I found it.

October 23, 2019, 04:03		#6
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,913 Rep Power: 28	Your question has nothing to do with Time average streamlines. So, why do you pick up an old query? Why don't you make a new one? Then........ what kind of streamlines do you expect? Are you convinced this is wrong? If so, why?